/***
	Copyright (c) 2008-2011 CommonsWare, LLC
	Licensed under the Apache License, Version 2.0 (the "License"); you may not
	use this file except in compliance with the License. You may obtain	a copy
	of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
	by applicable law or agreed to in writing, software distributed under the
	License is distributed on an "AS IS" BASIS,	WITHOUT	WARRANTIES OR CONDITIONS
	OF ANY KIND, either express or implied. See the License for the specific
	language governing permissions and limitations under the License.
	
	From _The Busy Coder's Guide to Advanced Android Development_
		http://commonsware.com/AdvAndroid
*/

package com.commonsware.android.feedfrags;

import android.support.v4.app.ListFragment;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class PersistentListFragment extends ListFragment {
	static public final String STATE_CHECKED="com.commonsware.android.feedfrags.STATE_CHECKED";

	@Override
	public void onListItemClick(ListView l, View v, int position,
															long id) {
		l.setItemChecked(position, true);
	}
	
	@Override
	public void onSaveInstanceState(Bundle state) {
		state.putInt(STATE_CHECKED,
									getListView().getCheckedItemPosition());
	}
	
	protected void restoreState(Bundle state) {
		if (state!=null) {
			int position=state.getInt(STATE_CHECKED, -1);
			
			if (position>-1) {
				getListView().setItemChecked(position, true);
			}
		}
	}
	
	public void enablePersistentSelection() {
		getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
	}
}
